// look for office
var officeTwo=document.getElementsByClassName('office_two')[0];
var officeOne=document.getElementsByClassName('office_one')[0];
var show=officeOne.getElementsByTagName('a')[0];
var controlshow=false;
// 菜单的显示和隐藏
EventUtil.addHandler(show,"click",function(){
	if(!controlshow){
		show.getElementsByTagName("span")[0].classList.remove("ronespananim");
	   show.getElementsByTagName("span")[1].classList.remove("rtwospananim");
	   show.getElementsByTagName("span")[2].classList.remove("rthreespananim");
	   show.getElementsByTagName("span")[0].classList.add("onespananim");
	   show.getElementsByTagName("span")[1].classList.add("twospananim");
	   show.getElementsByTagName("span")[2].classList.add("threespananim");
	   officeTwo.classList.remove('officecancelfalse');
	   officeTwo.classList.add('officecancelture');
	   controlshow=true;
	}else{
       officeTwo.classList.remove('officecancelture');
	   officeTwo.classList.add('officecancelfalse');
	   show.getElementsByTagName("span")[0].classList.remove("onespananim");
	   show.getElementsByTagName("span")[1].classList.remove("twospananim");
	   show.getElementsByTagName("span")[2].classList.remove("threespananim");
	   show.getElementsByTagName("span")[0].classList.add("ronespananim");
	   show.getElementsByTagName("span")[1].classList.add("rtwospananim");
	   show.getElementsByTagName("span")[2].classList.add("rthreespananim");
	   controlshow=false;
	}

});